Foot accelerator



May r17, .1927. 1,629,222

J. E.v MESSENGER FOOT ACCELERATOR Filed July 26. 1926 Patente-d VMay171, l

Y -JAGK 2E, iviisisfsnivefnrav or DES ivroiivifis, io'W'AQ-f irooir.`ACCELERATQR.

Y "aptiieaubn frifr'auiy 26, ieee/. seriai n3. izaoiejff `partelnormally provided for h andloperation,

of the carburetor valve.

Still ya further obJectis to provide ampair ofleversmounted on a bracketand arranged;

tov move in unison as a bell crank lever when tlie carburetor valve isoperated by. Athe hand throttle and adapted to move rela rated by thefoot. i t

'tive to each other Lwhen .the partsare ac`tu- Still a further objectis'to providea toggle lever connection for moving thetwo levers,

relative to each other'for operating the carb uretorvalve by the foot. if

, Stilla further object iste provide afoot accelerator adapted tooperate independently -of the hand throttle and yetwhen the'hand "Figure1,.is a Y ot the automobile yengine with lmy improved' connection withthe carburetor. 1 'i .Figure 2, is a top plan View myini-i v turnedyearaor lugrhavingan opening54.vr

Y Vtherein.- The openingBl-hasits sideedgles", bevelled in both'direc-tions` asat 36,5 1f 190 "Tlie'part V38 of the linilrltislinserted;in 7 throttle has been advanced for movement ofthe carburetor valve acertain distance then any operation 'of the footaccelerator will movethe carburetorvalve 4further without having to take up the movementgiven tothe carburetor. Avalve by u'seolr` a l hand throttle.

Still a further object is to Yprovvide footaccelerator wherein movementofthe throttle control will not in anywayaffectA or carry with itthefoot-actuatable` member.

vWiththese and other objects in View, my invention consistsin theconstruction', arrangement and combination yot' the various parts of mydevice,wherebythe' objectscon r tei'nplated are attained;v ashereinafter more fully set forth, `pointed* out inI-ganyclaimS,

Vand illustrated in the accompanying drawings, in which f top plan" viewof aportion foot accelerator mounted thereon and `Vin provedaccelerator.' i 'Y i f Figure 3, is a side'fview ofthe same.. Figure/t,is a view similaito Figure@ with'parts shown inv another position.

- on line -ffof Figure v3,v and Figure AG. i'sfa sectional view takenron line.

:Figure 5is a' detail sectional view taken (3J- 6 of-Figure 2;

In the accompanying'-dravvingsY I have` used the reference nuineralxvlO`toindicate an ordinary;automobile: engine having-ay carburetor 512thereon operable through' kthe c aiburetoiva-lve control leverv 14.

The control lever 14 isnorinally connected toa hand throttle controlbyineans of a connecting rodl 1 6. I n` .the usel of my Vfoo-taccelerator the connectingrod orlink 16 is disconnected :tronirthe"flevr114 con-iv nected to a part/ of my accelerator asl willhereinafter explain.

Y When th link16 is connected fQthelevl-:-j 65 14, and moved in 'adirection indicated by the arrow V18, then it causes tliefcarburetorcarburetor,

extends.

Y Yranged at an` anglerelatve, to vthe'sicjlfe .of s clearly shown; inFigure 1 of the drawingsjf t. ,i l. vj

Pivotally mounted and i. supported yupon the `loracket20 is a lever 26yslightly curvedl the engineV a in loetweenv itsends as yatQS. thisportion practicallygrests et 20. v

z The. leverv y26 I is 20` bythe ,rivet orr-theyli'ke 3Qwherebyiv-pivflotal orswinging*inoveinentfof the levier-526 may be had relative 1tothebracketQO j'lhelbraclet 20 further lincludes a down-' wardlyextendin'gfpart and ahoriz'i'ntalpdr-` l tion Vupon which :parts of the accelerator1 proper are mounted. In vthe installationnoty Y thesupport'QO- upon the engine 1 0 it-is lar- ,80-

the curvedportion 28. of lever 201 also f provide an offset portion 29kwhereby blieb,-

end oi` the ,lever-,is'slightly higheigthan .the

'The engi 'of are 12e furthest ittvy, Y

other.

the'opening3a` Yof the lugf as` clearly shown in yFigure 2 ofthel.drawingsQ-k "Thef normalpositionof the lug: 32a is quite A close tokthe lever 1 4 and it is'an` easy `inatterto simplyplace the part 38,k`of the link f the opening l34iorniedgby theflug'32.;

' Pvotally' connected to'V the free end 95, other.-

lever26 by means of a. ri'vetor the like 40 Y' is the lever V42. Thelever 42 has its free end vpivotallyconnected t 0H@ eIlClOf a Short linkor rod 44. The `rf0d44 has its other engl inserted through the openingformed in the Vlever whichnormally receives the partV 38 of the link 16.1

In order to have the levers26land42, vswing together. inA unison as abell cranklever, I provide a stopl 456'u-pon the lever 26 which has ashoulder 48 thereon adapted to be'engaged by `oneedge of the 'lever 42.

y turned endwhich extends through tl-ieopenf the car 'ureton lever 42Yrespective1y.`

AThe two levers v,52 and 54are pivotally" through 'the From thevconstruction of the parts just described it will be noted that movementof A the link 16 by handthrottleoperation in the direction indicatedlbythe arrow 18 will im` part `swinging' movement,l to the lever 26 and dueto. thestop '46 will cause the lever 42 to movev therewith as though thelevers 26 and 42 were. fixed andt'ormy partsof the bell cranlrlever;v Yi 1 Y Movement of the lever 26iinparts move- Yment. to the rod 44- inthe direction indicated by the arrow 5U' and this inturn causes theopeninjr or movement ofthe lever yportion of Tlfie effect of this'movement is the same as though the link 16 were directlycoimected tovthe lever 14. In order to 'operate the levers A' 26 andy 421 relativev'to each otherfor actua- ;tion ofthe lever 14 by foot control, :Iprofvide. ai pair of toggle levers 52 .and "54 which are pivotall'yconnected to thelever26 and connected together .rhyme-ans of a rivetorv'the like 56., .One end o f the lever 52V projects beyond -the'rivet. 56 -and is provided withan opening 58 in which is mounted oneendy 'of afootactuatmg rod`60.

`Therod60 may beV provided with a down` ened lto .the floorthrough whichthe member- 60 iextends. AQ screw v'cap or foot pieceV 68 is mounteduponthe upper end of the member 60,V In order to retain the levers26-aiid 42. in'engagementwith'each other Y that is where the 'lever42rest`s aga-instthe` stop $46,?I use a" yspring T0 fastened -at oneendto the lever'52 'beyond the' i 56 and nearthe open1n`g58.

y pivotvpoint `rIlhe other endof thesjpring isanchored to lthe'braclzet20 finany suitable man-ner. The coil spring '70y mounted asis shown inFigure 2 of the drawings, tendsft'o normally causev the. toggle levers52 and 541'to -berclosed l orV dropped towards yeach, other and' tlisinturn pulls vtheV "levers `26 `and towards each The end of the member 60in engagement i `with the lever 52 is practically, positioned justYabove thek pivot connection of the lever 26 and the support or bracket20, so

that'v the entire number of levers upon the bracket 2,0-thatislevers'26, 42, 52 and 54, may be moved in unison by movement of thelink: 16. wthout affecting the member 60.

Movement of the member 60 in the direc- `tion indicated by the arrow 72will cause the two toggle levers 52 and 54 to be spaced apart and due tothe connection of the levers 52 and 54 with the levers 26'a1id42, itniecessarily follows that the two levers 26 and 42 are" also spreadapart or swung vupon 'the rivet 40 as a pivot. l Movement of the twolevers 26 and 42 relative to each other imparts movement to the link orrod k44 and this in tu-rn swings the carbureter lever 14..`The'connect-ioii lietween the lever 26' and linksv 16 is'such-t-hat pthe lever 26 practically remains stationary and does not move duringfurther actuation the remainder of the parts of the accelerator.,'rv`

The' lever L42 swings away from the 'lever 26 when the foot member 6()`is moved and the' parts assume the position shown in Figure '4' of thedrawings.` f

It will be noted that all of the' parts "l mounted upon the bracket' l26practicallyy swing around the pivot 30 and when moved by the link 16operate as a fixed unit and when moved by the inem-ber 60operaterelativev to leach other.

The advantage 'of my foot sides in the use of the toggle leverconnection fastened to the two levers 26 and 42 whereby all ofl thelevers may operate as a fixed unit'or operate relative to eachV other`as independent movable parts'.

In the practica-l installation of' m-y device accelerator ret all thatis necessary i-s to fasten the bracket upon the engine block and mountthe 'link or rod 16' in the lever 26 and connect the rod 44 to thecarburetor,control lever 14.*

The footineinber 60 is extended through. the Hoor board 64.- l

Some changes may ,be made in the ccnstruction and arrangement ot theparte Vof my device without departingfrom the. real spirit and purposeoff my invention, and it is my intention to cover by my claims, anymodified forms of structure or use of mea,

chanical equivalents, which iniaybe reason ably includedwtliin theirscope.

I claim as my invention.:

1. A 'foot-.accelerator Jfor carburetors comprisi-ng a support, a pairof levers pivotallyV connected together and mounted on said sup,-V portand capable of movement'independent nected to saidv pair'of levers, vand-a foot actuatable" member in venga-gement with said toggle Yle-vers formoving them whereby Vly of Veach other, toggle levers pivotally con-v Y.

other,

2. A foot accelerator for'carburet'ors com-- prising a support, a. pairof levers capable of'v pivotal movement in fixed relationship andcapable -of pivotal movement independently'ofl each other, means ofconnection'V between one of .said leversandfthe carburetor and meansvoperable by theffoot for operating said levers independently ofeaehVsaidlast means includingtoggle levers connected tosaidpair of levers.

'3. A foot accelerator-'for carburetors'coin-l-Y prising a support,afleverpivoted to said.. support, a second lever vpivotedto said ifirstlever and capablehof. movement 'independ-iently`of `said first lever, astopy on said first leverwhereby 'movement of said first lever willimparty movement tov said second lever in unison therewith, toggleleversconnected to said first and second levers and movable@ therewith inunison, and 'a foot actuatable rod for moving said togglelevers forthus.

Y imparting movement of said second lever relative to said first lever.4. A f'oot accelerator for carburetors coniprisiiig a support, a. levei`plvotedto said support, a second lever pivoted to said first lever jandcapable of movement independ. ently of said first level-,a stopron saidfirst lever whereby movement of said first lever will impart movementtosaid second lever in unison therewith, toggle levers mounted oncsaidfirst and second levers, all of saidy levers being capable of pivotallymoving in fixed relationship onsaid support.

5'. A foot accelerator for carburetors com pr-ising a support, a pairoflevers pivotally connected together and pivotally mounted upon saidsupport, meansfor fixing one of said levers relative to the other whenone of said levers is moved in one direction whereby said levers operatein unison asa bell crank lever, and toggle jlevers pivotally connectedto each of said leversrwhereby movement of' said toggle leversmayirnpart movement to one of said pair of levers inde-f pendentlyof theother.

v' V6. Avfoot accelerator upon said support, means for fixing one of'said levers relative to the other when one of" said levers is moved'inone direction whereby said levers operate in unison as -a bell cranklever, ltoggle levers supported by saidV pair of' levers and movablewith said pair of i levers and means for spreading said toggle icomprisinga support, av pair of levers pivotlevers forii'npartingmovement to one of said pair of Vlevers independently of the other.

7 A foot accelerator for carburetors com! prising a support, a pair oflevers pivotally for carburetors com-` prising a support, a pair oflevers pivotally,A connected together and pivotally mountedV byl saidlevers` operate-fin unison as'afbell:

crank lever, toggle lllevers supported Yby l said f pairofflevers-and.movable witlrsaid ypairA of :levers fandineanshforspreading saidy.

toggle :leversffor imparting movementl to one' of, said pairfo'f;levers' independently; off

the other, andfmeans' for.I yieldingly holding said toggle -l levers atlone l 4limitwof` their# l' 1v n Affoot accelerator for carburetor-s comvl' prising a' supportya lever pivoted: to said support, '-a secondleverpivoted tosaidfrs leverv and capable fof' movementindependently of saidfirst lever, raflstopf'on Asaiddirst leverl*whereby `movement .of saidlfirstf lever! f will impart :movement to saidv second levers: infunisontherewith, toggle leverslcon'nectedf *toi said first v'and secondlevers:andbmovablei therewith in unison, and a foot actuatable y Vrodformoving said'togg'l'eV levers for thus imparting movement` of" saidsecondV lever relative to'said first lever, and means conv nected tosaid support and toggle levers for yieldingly holding said second leverin .en-

gagement with said stop. i v y 9. A foot accelerator forcarburetorscomprising asupport, a lever pivoted tosaid support, a secondlever pivoted to said rst lever and capable of movement independently ofsaid first lever, a stop onsaid first lever i -whereby movement of saidfirst lever .will

impart movementtosaid second lever in uni-k ico son therewith, togglelevers connected to said first and second levers and movable there.-v

with in unison, and a foot actuatable rod for moving said toggle leversfor thus im.

parting movement of said second lever rela tive *toy said first` leverand yielding,means;l

tending Vto hold said lirstand second levers in position where'they willoperate in uni son as a'single bell crank lever.

l0. A foot accelerator for carburetors comprising a support. a pairoflevers pivotally vconnected together and mounted on v. i

penvdentl'y of each other, means for causing said support and capable ofmovement inde-1f said pair of levers tooperate in unison as a singlebell crank lever, toggle levers pivotally connected tosaid pair oflevers, and a foot actuatablel member in engagement .with said togglelevers for moving them whereby movement of said pairof levers relativeto keach other maybe hadfan'd'ineans of connection lbetween one of saidpairof levers and a carburetor valve.j

l1. A vfoot accelerator for l `carburetors bell crank lever, toggle.levers pivot-ally e011- `nested-tofmd ,palm of levers, v211mlV ,a foot.@cantabile member in engagement with Seial toggle. leversfor e movingthem whereby movement of said pair. oflevers- `relative to'emehot-hervma-,y :be 11nd,.. all oise-itl levers bei il'xg vcapable ofpivotal movement V:in fixed f relationship to eachothelorr,seidreupport.l v

12.1 A ,Y foot eeoelerator Vfor carburetor-s?- ,eomprsinga supportyillpair of levers pivotel ally` connected together andv 'mountedn ori,sei-tl `support randV capable of movement? *inde each other may?behaichgall `of Seial levers loen ing -eapablefof Lpivotelmovement. infixed; relaiionshfp to each other on said Support, I

`ariel yielding ineens, tending tov Sholcl4 said leversfixedjrelatiorlshp relative, to each other.) @lf 7.7

ally Aconnected together fand Ymounted onseid siipfport and cepa/ble ofmovement inClepe-nfl-4 enftly of each other, ejstopon one' of saidleversywherely movement of said-levers in one direction will cause seidleve-reto move vtogether ae ay single bell. ere-nl: vlever andi movementin :mother directionl will/cause seid levers to move Independently ofeach 'ot-her, toggle Vleve-rs pivotzrlly eorm'ectedjto Asaid pair oflevers, anda foot avetuetable member in engagement; with said: toggle.;levers If'or movingthem whereby movement offsaid pair oli' leversrelative to each other` .may be had and means of connection loetvveen'oueof said pair of leversand @carburetor valve.V v e v.

JACK E. MESSElSKrER.

1' f n 25 13. A foot accelerator forA cerloureltors4 compi-Ising asupport, a, puirof levers pivot-y

